[ARROW-12641] [C++] Provide thread id accessors

• Type: New Feature
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: C++
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/28393
• Assignee: Unassigned
• Reporter: Ben Kietzman
• Created: 03/May/21 20:43
• Updated: 11/Jan/23 08:27

Description

Sometimes, a worker thread must identify its thread id within a ThreadPool (for example, to support safe concurrent access to per-thread state). We could use std::this_thread::get_id() for this, but this is less convenient for indexing into a container of per-thread state.

Issue Links

• links to: GitHub Pull Request #10233